Hebrews 7:21

(for they indeed became priests without an oath, but He with an oath through the One who said to Him,
“The Lord has sworn
And will not change His mind,
‘You are a priest forever’”);

Psalm 110:4

The Lord has sworn and will not change His mind,
“You are a priest forever
According to the order of Melchizedek.”

Hebrews 7:17

For it is attested of Him,
“You are a priest forever
According to the order of Melchizedek.”

1 Samuel 15:29

Also the Glory of Israel will not lie or change His mind; for He is not a man that He should change His mind.”

Hebrews 6:16-18

For men swear by one greater than themselves, and with them an oath given as confirmation is an end of every dispute.

Treasury of Scripture Knowledge

Summary

Hebrews 7:21

(For those priests were made without an oath; but this with an oath by him that said unto him, The Lord sware and will not repent, Thou art a priest for ever after the order of Melchisedec:)

The lord

Hebrews 7:17

Psalm 110:4

Sware

Hebrews 6:16

General references

Hebrews 7:17

Bible References

The lord

For it is attested of Him,
“You are a priest forever
According to the order of Melchizedek.”

The Lord has sworn and will not change His mind,

“You are a priest forever
According to the order of Melchizedek.”

Sware

For men swear by one greater than themselves, and with them an oath given as confirmation is an end of every dispute.

General references

For it is attested of Him,
“You are a priest forever
According to the order of Melchizedek.”